Shannon entropy measures the average information content in a message — the foundation of information theory.

Wildfires can create their own weather systems.

Fact #815 · Science

In 1909, Robert Millikan measured the charge of the electron in the oil-drop experiment.

Fact #1004 · Science

The Earth's atmosphere is composed mostly of nitrogen and oxygen.

Fact #80 · Science

Tardigrades can survive extreme radiation, freezing, and even space.

Fact #1887 · Science

Some frogs can change color depending on temperature or mood.

Fact #548 · Science

The Tuskegee experiment became a landmark case in medical ethics reform.

Fact #1008 · Science

Tardigrades can survive extreme radiation, freezing, and even space.

Fact #1882 · Science

Earthquakes occur when tectonic plates shift along faults.

Fact #813 · Science